Description

Specifications

The Pitot Tube is a differential pressure producer suitabl for air flow measurement. It includes multiple sensing points to measure total and static pressures. It is easy to install and cost effective. It offers simple, low cost installation into pipes and ducts, and high energy savings due to its low unrecovered pressure loss. There are no moving parts or sharp edges to wear, so long term accuracy can be main-tained.It contains a rubber cap,Plastic base and two 1 me-ters length air tube.

Features:-Air Flow Measurement-Low Installation Costs-Long Term Accuracy-Minimal Unrecovered Pressure Loss-Mass Flow Measurement

Probe

Material Aluminium alloy

Dimensions 7.8 x 19.5mm (0.3”x 0.8”)

Tubing inner diameter Φ3.8mm

Rubber cap

Material Rubber

Connections To suit 4mm (0.16”) i/d PVC air tubing

Duct flange

Material ABS

Dimensions 30 x 75mm (1.2”X 3”)

Air tube

Material PU

Dimensionsinside and out side diameter Φ 4 x Φ6mm length 1m

Pitot tube

Part Number Scheme

K Factor

Velocity (KM/H)

Pitot length(mm) Fan speed(Hz) 150 200 250 300 350 Average

(mBar)Comments/ Remarks

25.2 60 0.420 0.421 0.427 0.424 0.451 0.42923.7 55 0.360 0.365 0.377 0.368 0.393 0.37321.7 50 0.306 0.307 0.314 0.308 0.332 0.31319.8 45 0.245 0.250 0.258 0.251 0.269 0.25517.7 40 0.197 0.195 0.198 0.195 0.208 0.19915.1 35 0.146 0.148 0.149 0.147 0.156 0.14912.6 30 0.103 0.101 0.102 0.100 0.107 0.1039.6 25 0.060 0.060 0.059 0.056 0.059 0.0597.4 20 0.032 0.033 0.034 0.034 0.036 0.034

Fan Speed(Hz)

Left Side(KM/H)

Center(KM/H)

Right Side(KM/H)

Averge Speed(KM/H)

60 25.1 24.8 25.6 25.255 23.6 23.3 24.1 23.750 21.7 21.2 22.2 21.745 19.6 19.4 20.3 19.840 17.7 17.4 17.9 17.735 15.1 14.8 15.4 15.130 12.8 12.4 12.6 12.625 9.6 9.4 9.7 9.620 7.7 7.2 7.4 7.4

Velocity(KM/H) column data in up table is same as Average speed(KM/H) column data in below table.Average speed(KM/H)=(left side(KM/H) + center(KM/H) + right side(KM/H)) /3Average(mBar)=(150column + 200column + 250column + 300column+ 350column) /5

Pitot tube

1 Duct orientation and sensor mountingcircular duct installation square or rectangular duct installation

2 Instructions for installation

Step1:The primary station can be installed in any position on vertial or horizontal lines.However consideration to easy accesss of insrument connections should be given.

Step2:See location instrctions for best reselts. Step3:Drill a 1-7/8” hole in the center of the duct or pipe where the sensor is to be installed.Drill a 1/2” hole on the opposite side for the double support. Step4:Attach opposite end-guide rod and pass through both holes.Ensure correct direction of flow.Secure mounting plate to duct or pipe with (2) self-tapping screws.

Prefererred Mounting

Instructions for installation